Hi Kevin. Again!
Just wondering... Do you have any event regigigas on 4th Gen? One that unlocks the other three regis on Platinum?
If you have any of these:
Regigigas TRU 03089 Brave English 3-9-2009 Strong willed HP 379
Regigigas TRU 03089 Adamant English 3-8-2009 Sturdy body HP 377

I'm interested in them. If not, any that will unlock the other regis will do